Installation guide

14
CT3 feature
card
ACTIVITY (ACT) Fast flicker The feature card is up and running.
Slow flicker The feature card is not yet fully functional.
OK/MAINT On (green) The feature card passed initial power-up diagnostics tests and
is operating normally.
Yellow • The feature card is busied out, but there are active calls.
Once all the calls are terminated the feature card will be
powered off.
• The feature card is not functioning correctly.
Off All calls associated with the feature card have been shut down,
and it is safe to remove the card with the system powered on.
M13 Alarm (MA) On One of the following is present on the T3 line:
• Received alarm indication signal (RAIS)
• Loss of signal (LOS)
• Receive RED alarm (RRED)
• Far-end receive failure (RFERF)
1
Off The operating condition is normal.
Remote Alarm (RA) On A T1 alarm condition has been encountered by software.
Off The operating condition is normal.
Local Alarm (LA) On A T1 alarm condition has been encountered by software for a
particular port.
Off The operating condition is normal.
T3 EN/DIS Green A CT3 feature card line connection exists, enabling normal
operation.
Yellow Normal operation is disabled.
Low signal (LOS) On The T3 line interface unit (LIU) is experiencing a loss of signal.
Off Remains off when operating condition is normal.
Network Loop
(LOOP)
On At least one T1 is unavailable.
Off The operating condition is normal.
Universal
port and
dial-only
feature card
ACTIVITY (ACT) Flickering There is call activity on the feature card.
OK/MAINT Green The feature card passed initial power-up diagnostic tests and
is operating normally.
Yellow • The feature card is busied out, but there are active calls.
Once all the calls are terminated the feature card will be
powered off.
• The feature card is not functioning correctly.
Off All calls associated with the feature card have been shut down,
and it is safe to remove the card with the system powered on.
Table 1 LEDs (continued)
Feature Card LED State Description